1. Education
Send to a Friend via Email
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

Pauli Exclusion Principle Definition

By

The Pauli Exclusion Principle states two electrons will not be in the same state in an atom.

The Pauli Exclusion Principle states two electrons will not be in the same state in an atom.

Ian Cuming, Getty Images

Definition: The Pauli exclusion principle states no two electrons can have the identical quantum mechanical state in the same atom.

No pair of electrons in an atom can have the same quantum numbers n, l, ml and ms.

©2014 About.com. All rights reserved.